Printing device

Claim 1

APPARATUS FOR PRINTING DOCUMENTS AND THE LIKE, COMPRISING A MEMBER FORMING A PRINTING BED, MEANS FOR HOLDING ON SAID PRINTING BED A PRINTING PLATE HAVING DATA IN THE FORM OF RAISED TYPE THEREON, A CARRIAGE ASSEMBLY COMPRISING A PLATEN HAVING A CURVED SURFACE FOR IMPRINTING SUCH DATA ON A DOCUMENT INTERPOSED BETWEEN THE BED AND THE CARRIAGE ASSEMBLY, PIVOT MEANS SECURED TO SAID CARRIAGE A RELEASABLE GUIDE MEMBER FIXED RELATIVE TO SAID PRINTING BED HAVING AN ELONGATED GROOVE FOR GUIDING SAID PIVOT MEANS IN A PATH VERTICAL TO SAID PRINTING BED AND PREVENTING LATERAL MOVEMENT OF SAID PIVOT MEANS, ECCENTRIC MEANS FOR MOUNTING SAID CARRIAGE ASSEMBLY AND DIRECTING SAID SURFACE INTO ROCKING CONTACT AGAINST A DOCUMENT ON THE PRINTING BED, MEANS FOR DRIVING SAID ECCENTRIC MEANS SAID DRIVING MEANS IMPELLING SAID PLATEN TO DISTANCES ADJACENT TO AND SPACED AWAY FROM SAID PRINTING BED, AND MEANS FOR DISENGAGING SAID GUIDE MEMBER FROM THE PIVOT MEANS WHEN THE PLATEN IS SPACED AWAY FROM THE PRINTING BED ALLOWING THE CARRIAGE ASSEMBLY TO BE ROTATABLY SWUNG ABOUT THE ECCENTRIC MEANS FOR MAINTENANCE ON THE PLATEN COMPRISING CLEANING OR CHANGING OF THE PLATEN.